[U-Boot] [PATCH] usb: gadget: f_thor: free the allocated out request buffer

[Marek Vasut <marex@denx.de>]

On Thursday, February 04, 2016 at 12:34:57 PM, Michal Simek wrote:
> Hi guys,
> 
> On 7.12.2015 12:59, Michal Simek wrote:
> > From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
> > 
> > Fix the memory leak by freeing the allocated out request buffer
> > 
> > Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
> > Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> > ---
> > 
> >  drivers/usb/gadget/f_thor.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c
> > index a60e9487e774..75b72902c9d5 100644
> > --- a/drivers/usb/gadget/f_thor.c
> > +++ b/drivers/usb/gadget/f_thor.c
> > @@ -51,6 +51,7 @@ DEFINE_CACHE_ALIGN_BUFFER(unsigned char,
> > thor_rx_data_buf,
> > 
> >  DEFINE_CACHE_ALIGN_BUFFER(char, f_name, F_NAME_BUF_SIZE);
> >  static unsigned long long int thor_file_size;
> >  static int alt_setting_num;
> > 
> > +static void *out_req_buf;
> > 
> >  static void send_rsp(const struct rsp_box *rsp)
> >  {
> > 
> > @@ -891,6 +892,8 @@ static void thor_func_disable(struct usb_function *f)
> > 
> >  	}
> >  	
> >  	if (dev->out_ep->driver_data) {
> > 
> > +		if (out_req_buf)
> > +			free(out_req_buf);

Why don't you call free(dev->out_req->buf); here instead ? Then you won't need
that new variable you introduce.

> >  		dev->out_req->buf = NULL;
> >  		usb_ep_free_request(dev->out_ep, dev->out_req);
> >  		usb_ep_disable(dev->out_ep);
> > 
> > @@ -947,6 +950,7 @@ static int thor_eps_setup(struct usb_function *f)
> > 
> >  	}
> >  	
> >  	dev->out_req = req;
> > 
> > +	out_req_buf = dev->out_req->buf;
> > 
> >  	/* ACM control EP */
> >  	ep = dev->int_ep;
> >  	ep->driver_data = cdev;	/* claim */
> 
> any update on this one?
> 
> Thanks,
> Michal

Best regards,
Marek Vasut